OF THE KERGUELEN REGION OF THE GREAT SOUTHERN OCEAN. 



441 



LIST IV g. 



Eight of the species are recorded from the shore, and there are also 9 species recorded 

 from the shore which are known only from the area under consideration ; it may be of 

 interest to give here a list of these 1 7 shore species, indicating the 9 species confined to 

 this area by an asterisk *. 



Halicliondria pa?iieea. 



Echinus margaritaceus. 



Hemiaster cavernosus. 



Jcera pubescens. 



Halicarcinus planatus. 



Mytilus magellanicus. 

 *Eatoniella caliginosa. 



Hydrobia caliginosa. 

 *Neobuccinum eatoni. 



Patella fuegiensis. 



* „ kerguelensis. 

 *Rissoa (Setia) australis. 



* „ ( „ ) principis. 



* „ ( „ ) sinapi. 

 *Scissurella obliqua. 

 *Skenea subcanaliadata. 

 * Hemiartlirum setulosum. 



These are all shallow- water species unknown deeper than 150 fathoms, except 

 Echinus margaritaceus and Hemiaster cavernosus, which descend to 245 and 400 fathoms 

 respectively. 



Geographical Distribution. — Of the 169 species we find that : — 



62 species are represented in the Magellan Strait area (including Falklands and Fuegia). 



45 



44 

 40 

 29 



22 

 18 

 14 

 13 

 11 

 5 

 5 



,, North Atlantic. 



,, South Pacific (including Bass Strait). 

 ,, South Atlantic, 

 among the islands of the Southern Ocean (including South 



Georgia), 

 in the Tropical Pacific. 

 Tropical Atlantic. 



deep-water area of the Kerguelen Region. 

 Arctic Ocean. 

 North Pacific. 

 Indian Ocean. 

 Antarctic regions (surface and moderate depths). 



In addition there are 6 species the habitats of which outside this area are unknown, 

 and 1 species (Cythere polytrema) known only as a fossil outside this area. 



